The effect of lower limb strength training on jump serve performance in elite volleyball players

Abstract

This study aims to analyze the effects of lower body strength training on jump serve performance in elite volleyball players. A pretest-posttest experimental design was employed, involving 14 elite-level athletes who completed an eight-week lower body strength training program. The program consisted of targeted exercises, including squats, lunges, and plyometric drills, aimed at enhancing lower extremity explosive power. Data were collected through vertical jump tests using a standardized jump measurement device and jump serve accuracy assessments, which evaluated the percentage of successful serves landing within a designated target area. Statistical analysis showed a significant improvement in both vertical jump height (p < 0.05) and jump serve accuracy (p < 0.01) after the training intervention. Additionally, athletes who achieved greater strength gains also demonstrated enhanced postural stability and coordination during the execution of the jump serve. These results indicate that structured lower body strength training positively influences both the physical and technical aspects of performance in volleyball. The findings emphasize the value of integrating systematic strength training into volleyball conditioning programs to enhance athletic performance, particularly in explosive movements such as the jump serve. This approach can offer a competitive advantage in high-level matches by improving power output, movement control, and serve consistency.